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차량 간 통신을 위한 IEEE 802.11 Ad-hoc 네트워크 성능분석
곽수진(Sujin Kwag),이상선(Sangsun Lee) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The next generation wireless communication for Telematics/ITS(Intelligent Traffic Service), supporting the 'vehicle to vehicle (v2v)' and the 'vehicle to infrastructure (v2i)' communication. Since major Telematics/ITS services related to driver's safety, it is essential that the wireless communication guarantees its reliability. However, the performance of the existing IEEE 802.11 WLAN has not been verified in vehicular environments. Especially, Ad-hoc mode for the v2v communication has not even been considered as a mandatory function so far. Therefore, it is required to analyze its performance in vehicular environments and figure out the problems for the future modifications. In this paper; we analyze the performance of the IEEE 802.11 Ad-hoc network for v2v communication under a vehicular environment, focusing on the fairness which very crucial to the safety related services, and the effect of mobility. Some suggestions for future researches are followed.
전기자동차 인프라 구축을 위한 모바일 충전시스템 구현에 관한 연구
조성현(Sunghyun Cho),문희석(Heeseok Moon),곽수진(Sujin Kwag) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
Currently, the spread of electric vehicle(EV) is moving rather slowly than expected due to various reasons. One of the major stumbling block is a lack of charging infrastructure to support the easy recharging of the battery. In an effort to promote the wider use of EV for greener environment, many legislative efforts are being conducted. The research on the electric bus(E-Bus) with replaceable battery is new Technology in public transportation System. But E-Bus with replaceable battery have few weak point that was a short driving distance, Absence of Emergency Response System and Battery Supply System. So we design and implement Mobile Charging System that has keeping batteries, left up and down batteries to QCM(Quick Change Machine), self charging inside batteries and charging E-Bus to batteries in MCS. And this paper described about issues of implementation of Mobile Charging System for electric vehicle infrastructure.
자동 주차 지원 시스템에 대한 사용자 감성 평가에 관한 연구
전재석(Jaeseok Jeon),문희석(Heeseok Moon),곽수진(Sujin Kwag) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
In this paper, we described about evaluation of human sensibility using automatic parking assistance system. The perpendicular parking and parallel parking have been carried out as a user test and subjects are classified as beginning drivers, drivers with less than 1 year experience and over 3 years experience. As a result, parking duration of beginning drivers and drivers with less than 1 year experience who use automatic parking assistance system is similar to drivers with over 3 years experience. However error occurred according to sensor position and distance between vehicle and parking space. And also it occurred that the vehicle leaves from parking line or does not recognize the parking space. Therefore, if we improve its completeness by compensating problems that came up from this evaluation and distribute the automatic parking assistance system, it is expected that the automatic parking assistance system is to help driver providing convenience of parking.
V-Model에 따른 차량용 소프트웨어 검증 및 테스트 방법에 관한 연구
오종화(Jonghwa Oh),문희석(Hui-Seok Moon),곽수진(Sujin Kwag) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
In the past, the meaning of car was simply transportation which consists of mechanical parts. For the 21st century, vehicles consists mainly of electrical / electronic components such as individual control, integrated control and autonomous driving control. Safer, and more convenient, service-oriented, intelligent vehicles being reborn. Gradually system for convenience of users is increased and for providing services of high safety system, mount of electronic control unit has been expanded. And the service of development through the interlock between electronic control units are increasing. This has the advantage to meet the various requirements of the users, to prevent accidents and to minimize accidents and casualties. Drawback, however, is complicated due to the increase in the number of lines of the vehicle electronic control system software for implementing this function. In this paper, we introduce for vehicle electronic devices, software development methodology, based on the V-Model of software analysis tools for, and proposes tools for coding rules verification methodology presented in ISO 26262.